Hello, I have a question about the interface for clear_tt_buffer that has been added into 2.6.31-rc3. We are working with an EHCI host controller that has a transaction translator built-in. Therefore, it is naturally TDI (by ehci_is_TDI() check for has_tt). In the handling of clear_tt_buffer, if it is TDI, then clear_tt_buffer control message is not sent out. However, we do not have the way that is commented in ehci-q.c: /* REVISIT ARC-derived cores don't clear the root * hub TT buffer in this way... */ We actually need the clear_tt_buffer control message sent to the built-in transaction translator. What should we do? I believe the clear_tt_buffer control message is to notify the transaction translator about software-side cancellation/failure? I know we can handle hardware-side failures just fine without the need of clear_tt_buffer control message. Thanks, Julie. This email and any attachments are intended for the sole use of the named recipient(s) and contain(s) confidential information that may be proprietary, privileged or copyrighted under applicable law. If you are not the intended recipient, do not read, copy, or forward this email message or any attachments. Delete this email message and any attachments immediately. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
